Trans slips when it goes to 3rd

[GasGuzzler]

http://www.elcovaforums.com/forums/s...ad.php?t=25445

2 things might have gone wrong in your rig. Both failed in my 2003 (gen 1 H2 w/ 50K miles).

1. Your tranny needs to be rebuilt. AAMCO did mine for about $2600.
2. You should open your hood and take a peak at your coolant reservior. Your coolant *should* be a clear orangy-red color. If you see a strawberry milk shake liquid in there, you will also need to replace your plastic reservior, radiator, tranny cooler, and all necessary hoses. AAMCO fixed it for $1400. They put in an aftermarket tranny cooler for better reliability.

#2 is caused by the defective tranny cooler. When it is working, it draws the tranny fluid to the radiator to be cooled. When it fails, the T-fluid will leak into the radiator and thus give you the strawberry milk shake looking liquid in your reservior. You tranny will then overheat and wear out your "bands" over a short period of time.

My Hummer dealer will fix both for about $8000.